For the majority of the film photography grind, batteries are a must. Batteries are expensive, too, adding along with the pricey films nowadays. However, if you're really tight right now, you might want to check this tipster for emergency purposes.
Iddo Genuth is here to demonstrate how to jumpstart standard "dead" AA or AAA rechargeable batteries. This tipster might be a little advanced and dangerous, but with the right accessories, it could be worth a try by using a barbeque clamp.
Preview image was taken from the video.